Notice that the arrival of the wake into each of the three stages in its evolution depends on the value of \(Nt\) , which is equivalent to a downstream distance of \(x/\mbox{\textit {Fr}}\)  from the wake generator. At high Froude number, the downstream distance required to reach the NEQ and Q2D regions can become very large. Consequently, the size of the computational domain required to access these regimes rapidly becomes computationally unfeasible. To circumvent these limitation temporal simulations were used in the study of [1]}. Temporal simulations use a reference frame moving with the wake where time correlates with streamwise distance in a fixed reference frame. By assuming that the streamwise development of the flow is slow, periodic boundary conditions can be used and the equations are advanced in time without the need of introducing the wake generator. This reduces the computational cost significantly. Most of the studies that have contributed to our current understanding of stratified wakes use temporal simulations [1]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, [9]}.
